Command: PING link

PING

Description link

Sends a PING command to the server and receives a PONG response. Optionally, arguments can be passed which are echoed back after PONG .

This is commonly used to check if the server is responsive (like a health check or heartbeat).

Syntax link

  PING [<args>]
  

• PING : The base command

• <args> (optional): Any additional string(s) you want to send. The server will echo them back after PONG .

Examples link

Example 1: Simple Ping link

Input:

  localhost:9219> ping
  

Output:

  Ok PONG
  

Example 2: Case-insensitive Command link

Input:

  localhost:9219> PING
  

Output:

  Ok PONG
  

Example 3: Ping with Arguments link

Input:

  localhost:9219> ping hello world
  

Output:

  Ok PONG hello world
  

Behavior link

• The server reads the command using the Cmd structure.

• It prepends PONG to the joined string of provided arguments.

• Returns the full response as PONG <args> .

• The result is wrapped in a comm.Response object and sent back as CmdResponse .

Use Cases link

• Connectivity test between client and server.

• Latency/response check.

• Debugging input arguments being received by the server.